474 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxviii. 



TRIMEROTROPIS VINCULATA Scudder. 



Four males, live females. Huachuca Mountains, August 11 to 25. 

 Twenty-thi'ee males, sixteen females. Nog-ales, June 17 to August 'A. 

 Six males, one female, Patagonia Mountains, May 15. One male, two 

 females, Catalina Mountains. June 6. 



This s(n-ies is very unifoi-m in coloration, ])ut shows considerable 

 variation in shape of the thorax, some having the pronotum much 

 longer and more slender than others, the short broad form approach- 

 ing McNeilTs sri.rafUJs. 



HADROTETTIX TRIFASCIATUS Say. 



Six males, two females, Huachuca Mountains, August 12 to 29. 

 vSome of these specimens are labeled as having been taken at an 

 elevation of 8,0(»0 feet. 



HELIASTUS ARIDUS Bruner. 



One female. Huachuca Mountains, August 12. 



The collection also contains a female from Allniquerque, New Mexico. 



HELIASTUS BENJAMINI, new species. 



One male, one female. Huachuca Mountains. August 10. One 

 female, Nogales, July 5. 



Description. — General color reddish ])rown, elytra banded with 

 l)lack, and the wings red in l)asal half. Head moderately prominent, 

 color reddish l)r()wn al)ove, lighter on the gentv and face; vertex 

 scarcely tumid, somewhat elevated above the pronotum. especially in 

 the male; interocular space considerably less than (niale) or almost as 

 (female) wide as the Avidth of one of the eyes; fastigium moderately 

 declivent. the bounding walls slight but distinct, no median carina; 

 lateral foveohc faintly impressed elongate triangular spaces, below 

 each of which is a very distinct ocellus; frontal costa not nearh' reach- 

 ing the clypeus, about two-thirds as ])road as the interocular space, 

 expanded at the occdius, also somewhat expanded at the lower extremity 

 and al)ove where it joins tlie vertex, the ])Oundary walls but little 

 elevated but sharp and distinct; eyes prominent, more so in the male, 

 as long as (male) or consideral)ly shorter (female) than the infraocular 

 portion of the gen^v; antenn;e fuscous, basally more or less rufotesta- 

 ceous, about (female) or more than (male) as long as the head and 

 pronotum. Thorax rounded, lu-oadening slightly posteriorily, quite 

 uniformly reddish browni, the lateral lobes sometimes, not always, 

 with a whitish central spot; surface smooth, slightly punctate on the 

 metazona; lateral lobes as deep as long, the posterior-inferior angle 

 rounded; lateral carina? obsolete or, on metazona, bluntl}" indicated; 

 median carina indicated only on the metazona, and there linear; trans- 

 verse sulci well developed on lateral lobes, the posterior one dividing 



